It's okay. It's not a bone fragment. Judging from the ratio of your hand to sea cucumber in the picture, the fresh sea cucumber is already very big, so it is not a bone fragment or a bone spur. To say the least, even if there are bone fragments or spurs, they are almost invisible to the naked eye. It won't bulge like "fat particles".

This is definitely not fat particles, because sea cucumber is a high-protein and low-fat food. The fat content in dry sea cucumber is only 3-4%, and the fat content in fresh sea cucumber is even less, less than 1%. How can I see fat particles?

As for what?

Some soluble protein in the sea cucumber body wall dissolves and solidifies during heating, forming small particles. Generally, it is not easy to see sea cucumbers without tendons.

Just like the solidification of egg white, if the egg is broken when it is cooked, small particles similar to the above picture will appear at the crack. I don't know if I have had such an experience. .

Therefore, it is a normal phenomenon.

Hope to help you, hope to adopt!